Finding hair in your brush in the shower drain or on your pillow is generally normal because hair growth and hair fall works in cycles. The problem shows up when the shedding is noticeably heavier, lasts a time or comes with visible thinning or bald patches. Hair shedding and hair loss can stem from causes so learning the difference lets you know what to watch for.[1]
What Is Hair Fall?
Hair fall, also known as hair shedding, is a part of the hair growth cycle. Hair grows, then enters a resting phase and finally sheds so that a new strand can grow from the follicle. Normally you shed about fifty, to one hundred hairs each day. But sometimes the shedding goes up for a while. This can happen after physical or emotional stress, illness, a high fever, surgery, big weight loss, childbirth or certain nutritional problems. A common kind of shedding is called telogen effluvium.[2] With telogen effluvium the extra shedding may not appear immediately after the trigger. You can notice more hair falling out weeks or months later because of how the hair‑growth cycle works.
What Is Hair Loss?
Hair loss means that hair growth slows down or hair becomes thinner. Hair loss can happen if hair follicles stop making hair normally if they start making hair that's thinner or if a condition stops hair growth. Some kinds of hair loss happen slowly. Hereditary hair loss is one example that makes hair thin over years. Other kinds of hair loss happen faster. For instance alopecia areata can leave round or uneven patches where hair's missing. Hair loss can also be caused by medicines, medical treatments, scalp problems or hairstyles that pull on hair many times. People often notice hair falling out in the shower. That does not always tell you why hair loss is happening. The pattern, timing and the way the scalp looks give clues about hair loss.
Hair Loss and Hair Fall: What's the Difference?
Hair fall usually means hair is falling out which is normal. Hair loss can be more serious. It may mean the hair isn’t growing back properly. There could be fewer hairs growing or the hairs that do grow are smaller. For example if someone has telogen effluvium they might see a lot of hair come out when they wash or brush their hair. New hair still grows. The problem often gets better when the cause is fixed. Hair loss can look different. You might notice your part getting wider. Your hairline might move back. There could be thinning spots. You might see bald patches.
Some people may have both shedding and hair loss at the same time. That’s why it’s important to talk to a dermatologist if changes last for an extended period of time.
Common Causes of Hair Fall
A temporary increase in hair shedding may occur following a change in the body. Causes include:
- Significant stress.
- High fever or illness.
- Surgery.
- Childbirth.
- Major weight loss.
- Nutritional deficiencies.
- Certain medications.
Timing may make it hard to trace the cause since a stress-related incident that occurred months ago may have more bearing on the problem than what occurred just days ago.
Why Hair Follicle Health Matters
Every strand of hair grows from a follicle in the scalp. The follicle is responsible for making hair and controlling how it grows. That means the health of the follicle plays a role when it comes to long-term hair density.
Taking care of the scalp is important. Repeated tension or damage to the scalp can harm the follicles.[3] Being gentle, with your hair and avoiding styles that pull hard on the same spots can help keep the follicles from getting stressed.[4]
Using hair care products can help reduce breakage. It won’t fix every kind of hair loss. If the issue is tied to the hair growth cycle, a problem, genetics or the follicle itself just switching shampoos or conditioners probably won’t make a difference.
When Should You Pay Attention?
Occasional shedding is normal. It becomes more important to take action when you see a clear and lasting change. You should consider talking to a dermatologist if you notice:
- Thinning or a wider part in your hair
- Receding areas or bald spots
- Sudden or heavy shedding
- Hair loss that doesn’t get better over time
- Scalp symptoms like strong itching, pain, redness or flaking
- Hair loss in other areas such, as eyebrows, eyelashes or body hair
A dermatologist can look closely at your scalp and hair to figure out whether you are dealing with too much shedding, breakage, actual hair loss or a mix of these issues.[5]
The Main Takeaway
Hair fall usually means hair is falling out, which is typically normal. However, hair loss can mean hair does not grow back the same way (e.g., thinner, patchy, etc.). Knowing the difference helps you identify changes in how much hair falls out and how thick the hair. How healthy the hair follicles are, instead of thinking every strand you lose is a sign of permanent hair loss.
Pay attention to patterns and long‑term changes of counting every strand of hair. If you keep shedding a lot if the hair looks noticeably thinner or if you notice spots you should talk to a dermatologist.
References
[1] Do You Have Hair Loss or Hair Shedding?
[3] Thinning Hair: Causes, Treatment, and More